Hi there, i was trying to conduct some hydrological analysis using SAGA through the Processing Toolbox and as always when i try to run the 'Channel Network' algorithm i get the warning "input layers do not have the same grid extent". Even when the layers have "roughly" (roughly in this case means up to the ninth decimal place) the same extent.
I've tried to clip the rasters to exactly the same extent without any success so i assume there are only a few solutions left which aren't easy or practical. Then i found the script, /SagaAlgorithm212.py/, and the function responsible for this check /checkParameterValuesBeforeExecuting/. IMO the grid extent should be checked up to the 7 or 8 decimal places not the full mantissa (16 decimal places in my case, for and EPSG:4326 raster layer). -100.0001388888999969,17.9998611110999995 : -98.9998610310999965,19.0001389689000000 -100.0001388888888840,17.9998611111111089 : -98.9998611111111018,19.0001388888888876 Is there any reason behind this behavior? Could the extent check be less strict? Cheers! -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Grid-extent-resctriction-on-some-SAGA-algorithms-too-extrict-tp5200669.html Sent from the Quantum GIS - User mailing list archive at Nabble.com. _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
